import logging

from django.db import DatabaseError
from redis.exceptions import  RedisError
from rest_framework import status
from rest_framework.response import Response
from rest_framework.views import exception_handler as drf_exception_handler

"""
 自定义异常处理
 :param exc: 异常
 :param context: 抛出异常的上下文
 :return: Response响应对象
 """

# 获取配置文件中定义的logger,用来定义记录日志
logger = logging.getLogger('django')

def exception_handler(exc,context):
    response = drf_exception_handler(exc,context)

    if response is None:
        view = context['view']
        if isinstance(exc,DatabaseError) or isinstance(exc,RedisError):
            logger.error('[%s] %s' % (view, exc))
            response = Response({'message': '服务器内部错误'}, status=status.HTTP_507_INSUFFICIENT_STORAGE)

        return response